jQuery | Pass url parameters to an iframe

// Iframe Container
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
jQuery(function() {
    var oldIframe = jQuery('#iframe');
    if (oldIframe.length) {
        var src = oldIframe.attr('src');
        if (src) {
            var iframeContent = $('<iframe id="iframe-new" src="' + src + location.search + '" style="border: none;width: 100%;background-color:#fff;"></iframe>');
<iframe id="iframe" src="https://go.domain.com/form.html"></iframe>
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